It was my understanding that the Apple upgrade was a replacement power supply, the whole works including their newer fan in the housing. That's what I have in my machine. If you purchased during a certain slot in time, you got the Apple upgrade, probably at a dealer's shop. Does Apple have a fan kit upgrade for the MDD? Anyone? I thought I'd done my due diligence pretty well and identified Verax as the only maker of a replacement fan for an MDD power supply. Thanks. jonny /// >Jonny, > >thanks for your reply. I do not know the particular kit your refer >to - I have read positive reports on the net about the Apple kit, so >I'll stick with that. > >Thanks. >Paul > > >On 29/05/2008, at 4:18 AM, jonny wrote: > >>Paul, >> >>Just an option for the noisy power supply fan. >> >>I have an M12 power supply (quiet powerful) fan kit for an MDD. I >>bought it, then while waiting 2+ months for delivery, I decided to >>replace the whole power supply on my dual 1.25 ghz MDD, with a new >>apple factory power supply. The -new- power supply had the 'quiet' >>apple upgrade/fix. It was spendy. That done, this piece became >>unneeded. Ordered from Holland over a year ago. Brand new, in >>box, as sent.